Medical Dictionary


noun de·com·pres·sion \-ˈpresh-ən\

Medical Definition of decompression

  1. :  the act or process of releasing from pressure or compression: asa:  reduction of pressure: (1):  the decrease of ambient air pressure experienced in an air lock on return to atmospheric pressure after a period of breathing compressed air (as in a diving bell or caisson) or experienced in ascent to a great altitude without a pressure suit or pressurized cabin (2):  the decrease of water pressure experienced by a diver when ascending rapidlyb:  an operation or technique used to relieve pressure upon an organ (as in fractures of the skull or spine) or within a hollow organ (as in intestinal obstruction)

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a rounded knoll or a ridge of ice

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